using a public static class in a 'Project' with defined namespaces

namespace Personnel_Database
{
    public partial class _default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
              utils.someFunction();//this does not work

namespace Personnel_Database.App_Code
{
    public static class utils
    {

using Personnel_Database.App_Code;
// now you can use everything that is inside the Personnel_Database.App_Code namespace
namespace Personnel_Database
{
  ...

protected void Page_Load(object sender, EventArgs e)
  {
    Personnel_Database.App_Code.utils.someFunction();
    ...

using Personnel_Database.App_Code;

<%@ Import Namespace="Personnel_Database.App_Code" %>

using Personnel_Database.App_Code;

namespace Personnel_Database
{
    public static class utils
    {